* {
  padding: 0;
  margin: 0;
}
html,
body {
  width: 100%;
  height: 100%;
}
a {
  text-decoration: none;
  cursor: pointer;
}
.wrapper {
  width: 1180px;
  margin: 0 auto;
}
header {
  width: 100%;
}
header .nav {
  width: 100%;
  height: 40px;
  background-color: #333;
  position: fixed;
  z-index: 10000;
}
header .nav .top-nav {
  height: 40px;
  margin: 0 auto;
}
.nav-right {
  float: right;
}
.nav-right > li {
  list-style: none;
  float: left;
  line-height: 40px;
  height: 40px;
}
.nav-right > li > a {
  text-decoration: none;
  color: #fff;
  margin-right: 25px;
}
.big-nav {
  height: 100px;
  padding-top: 40px;
  overflow: hidden;
}
.big-nav .box-left {
  float: left;
}
.big-nav > ul {
  list-style: none;
  line-height: 100px;
  text-align: center;
}
.big-nav > ul > li {
  float: left;
}
.big-nav > ul > li > img {
  width: 180px;
  height: 33px;
  margin-right: 50px;
}
.big-nav > ul > li > a {
  text-decoration: none;
  font-size: 18px;
  color: black;
  margin-right: 50px;
}
.box-right {
  float: right;
  margin-top: 30px;
}
.box-right > .search {
  width: 430px;
  height: 36px;
  text-align: center;
  border: 1px solid #999;
  border-radius: 23px;
  position: relative;
}
.box-right > .search > .inp {
  width: 360px;
  height: 26px;
  border: none;
  line-height: 30px;
  position: absolute;
  outline: none;
  top: 5px;
  left: 15px;
}
.box-right > .search > .s-icon {
  width: 20px;
  height: 20px;
  float: right;
  position: absolute;
  font-size: 22px;
  top: 5px;
  right: 20px;
}
.box-right > .s-list {
  overflow: hidden;
  list-style: none;
  margin-left: 20px;
}
.box-right > .s-list > li {
  float: left;
  list-style: none;
  padding: 4px 8px;
}
.box-right > .s-list > li > a {
  text-decoration: none;
  color: #666;
  font-size: 12px;
}
.nav-left {
  float: left;
}
.nav-left > li {
  list-style: none;
  float: left;
}
.nav-left > li > a {
  text-decoration: none;
  color: #fff;
  text-align: center;
  line-height: 40px;
  font-size: 12px;
  margin-right: 28px;
}
.banner {
  width: 100%;
  height: 530px;
  position: relative;
}
.banner > a {
  display: block;
  width: 100%;
  height: 530px;
  position: absolute;
}
.banner > a:nth-of-type(1) {
  background: url("https://p0.ssl.qhimg.com/t01184f1bb03f655f98.webp") center top;
}
.banner > a:nth-of-type(2) {
  background: url("https://p0.ssl.qhimg.com/t010870466939631120.webp") center top;
}
.banner > a:nth-of-type(3) {
  background: url("https://p0.ssl.qhimg.com/t0104d9aa62ec15199e.webp") center top;
}
.banner > a:nth-of-type(4) {
  background: url("https://p3.ssl.qhimg.com/t01b1ae7e231ac75328.webp") center top;
}
.sp {
  display: inline-block;
  width: 40px;
  height: 60px;
  background-color: rgba(0, 0, 0, 0.2);
}
.sp > .iconfont {
  width: 30px;
  height: 30px;
  font-size: 2.5rem;
  color: rgba(153, 153, 153, 0.3);
  text-align: center;
}
.sp:hover {
  background-color: rgba(0, 0, 0, 0.5);
}
.sp:hover .iconfont {
  color: #f0f0f088;
}
.prev {
  position: absolute;
  top: 40%;
  left: 312px;
}
.next {
  position: absolute;
  top: 40%;
  right: 100px;
}
.yuan {
  height: 20px;
  position: absolute;
  left: 50%;
  bottom: 8px;
  z-index: 1;
}
.yuan > .show {
  background-color: #ccc;
  border: 2px solid #000000;
}
.yuan > li {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 2px solid rgba(0, 0, 0, 0.5);
  float: left;
  margin: 10px;
}
.yuan > li:hover {
  border: 2px solid #000000;
}
.yuan > li .dian_show {
  opacity: 1;
}
.erji-nav {
  width: 230px;
  height: 530px;
  position: absolute;
  left: 85px;
}
.erji-nav > .b-all {
  text-align: center;
  background-color: rgba(0, 0, 0, 0.6);
  line-height: 50px;
}
.erji-nav > .b-all > a {
  color: #fff;
  display: block;
  font-size: 16px;
}
.b-list {
  height: 480px;
  list-style: none;
  background-color: rgba(0, 0, 0, 0.2);
}
.b-list > li {
  text-align: center;
  width: 230px;
  line-height: 48px;
}
.b-list > li > a {
  font-size: 14px;
  color: #fff;
}
.b-list li:hover {
  background-color: rgba(0, 0, 0, 0.5);
}
.b-list li:hover .list-box {
  display: block;
}
.b-list .list-box {
  width: 950px;
  height: 530px;
  background-color: rgba(255, 255, 255, 0.98);
  position: absolute;
  top: 0;
  left: 230px;
  text-align: left;
  display: none;
  z-index: 2;
}
.b-list .list-box > a {
  display: inline-block;
  width: 110px;
  height: 65px;
  margin-left: 50px;
  font-size: 14px;
}
.b-list .list-box > a > img {
  height: 100%;
}
.b-list .list-box :hover {
  color: #999;
}
